OptionProbability
Never found root cause
Cascading failure (like something went wrong and the recovery procedure had an issue that made it worse)
Loss of synchronism
Strain on electrical/transmission infrastructure principally caused by renewable energy sources
Renewables made the grid less stable
Low or insufficient inertia
Battery storage
The cause didn't originate in Spain (was propagated by EU grid)
Bad weather
Intended infrastructure damage (cable cut, bomb, etc)
It's declared a cyber attack
Cyber attack & Russia-funded
Accidental infrastructure damage (fallen tower, wildlife, etc)
Cyber attack & independent group
"Intern plugged wrong cable"
Cyber attack & USA-funded
85
15
8
6
5
4
3
2
1
South-East Asia
Southern Europe (Iberian Peninsula, Italy, Balkans, Greece)
Oceania
South Asia
North America
Middle East & Northern Africa
East Asia
Mexico / Central America / Caribbean
Western Europe (France to Poland)
Sub-Saharan Africa
South America
Eastern Europe / Central Asia (Former USSR)
Northern Europe (Nordics and British Isles)
45
36
13
12
11
10
9
7
Passenger pigeon
Other
Thylacine
Dodo
Aurochs
Rapa Nui palm
Iberian ibex
Quagga
Christmas Island rat
Wooly mammoth
Xerces blue
Elephant bird
43
20
0
OptionVotes
YES
NO
677
421